Mitsubishi Electric M800VW Series Programming Manual page 955

M800V/M80V Series PLC Programming Manual (2/2)
16 External PLC link
16.1 CC-Link
 Program example when using standby master function (master station duplex function)
(a) to (d) on the left correspond to those of the timing chart in "ON/OFF Timings of Link Special Relays (SB) Relating to
Standby Master Function".
SM402
0
Initial device set
X0
12
N N0 M0
SB5A
(a) 31
SB5B
(b) 61
Control ladder when master Control ladder when master Control ladder when master
station is in operation station is in operation station is in operation
SB5A
(c) 90
SB42
(d)
1 105
M10
1 125
1 127
X0
128 1
N N1 M1
M11
Control ladder when standby Control ladder when standby Control ladder when standby 1 155
master station (local station master station (local station master station (local station
operation) is in operation operation) is in operation operation) is in operation
SM400
1 157
158
IB-1501668-B
X1 X0F SB7B
SB5B
SB43
= K0 SW43
A control program when master station is operating
X1 X0F SB7B
A control program when standby master station
SET
SET
MC N0
BMOVP K4X1000 W1000
BMOVP D1000 W1500
BMOVP W1000 K4Y1000 K8
BMOVP W1500 D2000
SET
RST
SET
MCR
MC N1
(local station) is operating
RST
MCR
934
Control start relay when master
M10
station is in operation
Control start relay when
M11
standby station is in operation
M0
K8
Save RX and RWr data in Save RX and RWr data in Save RX and RWr data in
W device at master switching W device at master switching W device at master switching
K16
Set the saved data in Set the saved data in Set the saved data in
W device to RY and RWw. W device to RY and RWw. W device to RY and RWw.
K16
Refresh change instruction Refresh change instruction Refresh change instruction
SB1
request ON request ON request ON
SB1
Refresh change instruction Refresh change instruction Refresh change instruction
request OFF request OFF request OFF
M10
N0
M1
M10
N1
END